A resident of Akagicho, high-schooler Yamato finds himself locked up after starting a fight. His classmate, Teru, appears and makes him a deal. In exchange for getting him out of jail, he wants Yamato to take on a job for him. Yamato and his rival, Ryugo, head for the designated spot, but are set upon by thugs Teru riled up. When the two teens win the brawl, Teru takes them underground, where the boys are in for the shock of their lives.
I'm not surprised. In a short time 
you had your memories returned.
Kein Wunder. Du hast in sehr kurzer Zeit
deine Erinnerungen zurückerlangt.
No me sorprende.
Acabas de recuperar tus recuerdos
Ça me surprend pas. Tu as retrouvé
la mémoire il y a peu de temps.
Non mi sorprende. In pochissimo tempo,
ti sono stati restituiti tutti i tuoi ricordi.